CVE-2026-43488

MEDIUM EPSS 1.7%
Published May 13, 20261mo ago · Modified Jun 26, 20265d ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 13, 2026 1mo ago
Last Modified Jun 26, 2026 5d ago

Description

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Prevent interrupt storm on host controller error (HCE) The xHCI controller reports a Host Controller Error (HCE) in UAS Storage Device plug/unplug scenarios on Android devices. HCE is checked in xhci_irq() function and causes an interrupt storm (since the interrupt isn’t cleared), leading to severe system-level faults. When the xHC controller reports HCE in the interrupt handler, the driver only logs a warning and assumes xHC activity will stop as stated in xHCI specification. An interrupt storm does however continue on some hosts even after HCE, and only ceases after manually disabling xHC interrupt and stopping the controller by calling xhci_halt(). Add xhci_halt() to xhci_irq() function where STS_HCE status is checked, mirroring the existing error handling pattern used for STS_FATAL errors. This only fixes the interrupt storm. Proper HCE recovery requires resetting and re-initializing the xHC.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
1.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥6.2  –  <6.6.130
linuxlinux_kernel*≥6.7  –  <6.12.78
linuxlinux_kernel*≥6.13  –  <6.18.19
linuxlinux_kernel*≥6.19  –  <6.19.9
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/09ff0099c6cf148ff1f7053b5b6c84beb1c2ef8d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6f91f3f087194c114d6d8ea4591b850bb00672f8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2dd9abf8c06cfcbcf242321fd54ae51a4807705
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cd41e0d1df8fcf5eae294657da52b50d1ce03246
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d6d5febd12452b7fd951fdd15c3ec262f01901a4
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/09ff0099c6cf148ff1f7053b5b6c84beb1c2ef8d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6f91f3f087194c114d6d8ea4591b850bb00672f8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b2dd9abf8c06cfcbcf242321fd54ae51a4807705
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cd41e0d1df8fcf5eae294657da52b50d1ce03246
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d6d5febd12452b7fd951fdd15c3ec262f01901a4
    Patch